Maribacter marinus sp. nov. isolated from a deep-sea seamount.

A Gram-stain negative, rod-shaped, aerobic strain, designated YC973, was isolated from a seamount near the Yap Trench in the tropical western Pacific. Phylogenetic analysis based on its 16S rRNA gene sequence showed that strain YC973 is related to the genus Maribacter and has high 16S rRNA gene sequence similarity to Maribacter orientalis KMM 3947 (97.6%). The predominant cellular fatty acids were iso-C, iso-C G and an unidentified fatty acid of equivalent chain-length 13.565. The polar lipid profile contained phosphatidylethanolamine and five unidentified lipids. The genomic DNA G+C content of strain YC973 was 36.1 mol%. On the basis of the evidence presented in this study, strain YC973 represents a novel species of the genus Maribacter, for which we propose the name Maribacter marinus sp. nov. (type strain YC973 = KACC 19025 = CGMCC 1.16328).